Hossein Mosaddegh - Academia.edu (original) (raw)

Papers by Hossein Mosaddegh

Research paper thumbnail of Nummulitids of the shallow-marine middle Eocene limestones from the central Iran region: taxonomic and biostratigraphic implications

Micropaleontology

Nummulitid tests are recorded for the first time from an upper Lutetian limestone outcrop of the ... more Nummulitid tests are recorded for the first time from an upper Lutetian limestone outcrop of the Tihoieyeh section, exposed in the southwestern Jiroft region of central Iran. Detailed studies on their systematics and biostratigraphy resulted in the diagnosis of three nummulitid taxa as Assilina exponens Sowerby 1840, Nummulites deshayesi D’Archiac and Haime 1853 and Nummulites sp. cf. N. praelyelli. These larger benthic foraminifera are associated with calcareous nannofossil assemblages assignable to the SBZ16, NP16/CNE14 biozones.

Research paper thumbnail of Carboniferous Conodonts Biostratigraghy in Kiyasar Region and Introduction 7 Biozones Comparable to World Standard Conodont Zonation

فصلنامه علمی علوم زمین, Feb 20, 2011

Lower-Middle costatus zone Siphonodella presulcata Siphonodella presulcata zone Hangenberg (Disco... more Lower-Middle costatus zone Siphonodella presulcata Siphonodella presulcata zone Hangenberg (Disconformity) 1) sulcata zone 2) duplicata zone 3) sandbergi-L. crenulata zone 4) typicus zone 5) anchoralis-latus zone 6) texanus-A.scalenus zone 7) Gnathodus bilineatus zone

Research paper thumbnail of Biostratigraphic Interpretation and Systematics of Some Alveolina Species Assemblages in the Ziarat Formation from Soltanieh Mountains (Western Alborz)

فصلنامه علمی-پژوهشی علوم زمین, May 22, 2015

Research paper thumbnail of Archaediscoid foraminifers and their significance in biostratigraphy and chronostratigraphy of the lower Carboniferous deposits, a case study on the northern Alborz

Journal of Stratigraphy and Sedimentology Researches, 2017

A relatively complete succession of Viséan to Serpukhovian rocks is exposed in the northern Albor... more A relatively complete succession of Viséan to Serpukhovian rocks is exposed in the northern Alborz, where two sections Naserabad and Dozdehban have been selected for their biostratigraphic interest. The archaediscoids are probably the best stratigraphical microfossils during the Viséan and Serpukhovian. In this study, the archaediscoids of northern Alborz are analyzed owing to their potential in biostratigraphic and chronostratigraphic subdivisions. During the early Viséan, MFZ9 foraminiferal biozone, the proposed ancestor of the archaediscoids Lapparentidiscus appears followed by the massive occurrence of primitive archaediscids, defining the MFZ10 biozone. The MFZ11 can be well defined by the first occurrence of Uralodiscus rotundus. The base of MFZ12 of this area is characterized by the first occurrence of Nodosarchaediscus and the top by Paraarchaediscus at concavus-angulatus stage. The lower upper Viséan rocks might be absent from the northern Alborz, probably because a mid-Vis...

Research paper thumbnail of Pore throat size characterization of carbonate reservoirs by integrating core data, well logs and seismic attributes

Investigation of pore system properties of carbonate reservoirs has an important role in evaluati... more Investigation of pore system properties of carbonate reservoirs has an important role in evaluating the reservoir quality and delineating high production intervals. The current study proposes a three-step approach for pore throat size characterization of these reservoirs, by integrating core data, well logs and 3D seismic volume. In this respect, first the pore throats size was calculated using Pittman and Winland models based upon routine core analysis data, and calibrating the results with the laboratory-derived capillary pressure curves. In the second step, the pore throat size as a continuous log was calculated using petrophysical data for each studied well. Finally, the calculated pore throat size log was tied to 3D seismic data at well locations. The results show that seismic attributes including acoustic impedance, amplitude envelope, filter 15/20-25/30 and derivative instantaneous amplitude are the best predictor set for converting the 3D seismic volume into a pore size cube...

Research paper thumbnail of Visean calcareous algae from Zanus and Abnak sections of Mobarak Formation, central Alborz, Iran

Research paper thumbnail of Porosity development in central Alborz Upper Jurassic deposits (N-Iran): sequence stratigraphy, diagenesis and mechanical stratigraphy

Neues Jahrbuch Fur Geologie Und Palaontologie-abhandlungen, 2021

Research paper thumbnail of ABSTRACT: Organic Geochemical Investigation on Lower Carboniferous Organic Rish Sediments (Mobarak Formation) in Eastern Alborz, Iran

Research paper thumbnail of Evaluation of Residual Diazinon and Chlorpiryfos in Children Herbal Medicines by Headspace-SPME and GC-FID

Iranian Journal of Pharmaceutical Research : IJPR, 2014

The oldest method for the managing of the illness is the use of medicinal plants. The use of herb... more The oldest method for the managing of the illness is the use of medicinal plants. The use of herbal products as the first choice in self-treatment of minor conditions continues to expand rapidly across Iran. This makes the safety of herbal products an important public health issue. Pesticides are used widely in agriculture to increase the production by controlling the harmful insects and disease vectors, however it has some hazards on biological system of human especially children. The present study was designed to examine the residual amount of organophosphorus pesticides (Diazinon and Chlorpyrifos) in children herbal medicines available in the Iranian market. Five children herbal medicine liquid dosage forms were purchased from pharmacy store. They were extracted with SPME (Solid Phase Microextraction) using the PDMS-DVB fibre. Then the extracts were injected into a GC. The gas chromatograph was Younglin model YL 6100 equipped with a flame ionization detector. The column was Techn...

Research paper thumbnail of Evaluation of Sodium Valproate Low Dose Efficacy in Radicular Pain Management and It’s Relation with Pharmacokinetics Parameters

BioMedicine, 2020

Background: Radiculopathy due to lumbar or cervical disc disease is the most common chronic neuro... more Background: Radiculopathy due to lumbar or cervical disc disease is the most common chronic neuropathic pain in adults. The aim of present study was evaluation of low dose of sodium valproate (VPA) on radicular pain and determining VPA pharmacokinetics. Materials and Methods: In this double blind randomized placebo control clinical study, 80 patients with established lumbar or cervical radicular pain, have been randomly allocated into two study groups: 40 have received sodium valproate 200 mg/day and Celecoxib 100 mg/day and acetaminophen 500 mg PRN as rescue medication, and second group has received placebo, Celecoxib and acetaminophen. Quantitative assessment of pain was done by visual analogue scale (VAS) prior to perform the intervention and after ten days (treatment duration). Blood sample has been taken for determining mean through concentration after five half-lives. Evaluation of plasma concentration of VPA and that of efficacy on pain score relationship by comparing VAS before and after the therapy was done. Results: Group A and B have demonstrated significant alleviation in mean VAS score; ¡21.97 ± 25.41, ¡14.39 ± 23.03 respectively (P < 0.001). The mean plasma concentration of VPA in group A was: 26.9 ± 13.5 mg/L. Moreover, no significant correlation was seen between pain score with age, gender, and weight (p > 0.05). Conclusion: Low dose of sodium valproate especially together with NSAIDs demonstrated good efficacy in lumbar and cervical radicular pain management.

Research paper thumbnail of Bryozoan fauna from the Mobarak Formation (Mississippian), northern Iran

PalZ, 2019

Four bryozoan species were identified from the Mississippian (Viséan) Mobarak Formation of northe... more Four bryozoan species were identified from the Mississippian (Viséan) Mobarak Formation of northern Iran: the cystoporates Fistulipora longituba Yang and Lu, Fistulipora djebaglinica Nikiforova, Fistulipora sp., and the trepostome Hinaclema sakagamii Schastlivtseva. The cystoporates are represented by large massive, mainly multilayered colonies, whereas Hinaclema sakagamii encrusts (often also multilayered) on two colonies of Fistulipora. The identified species show palaeobiogeographical relationships to the Mississippian of China, Kazakhstan, and Uzbekistan.

Research paper thumbnail of Zoophycosichnogenus distribution and paleoenvironmental analysis: examples from the Mississippian Mobarak formation (Alborz Basin, Iran)

Historical Biology, 2018

Zoophycos is a characteristic trace fossil in the Mississippian in the Alborz Basin deposits of n... more Zoophycos is a characteristic trace fossil in the Mississippian in the Alborz Basin deposits of north Iran, and is described for the first time in the Mobarak Formation. The vertical distribution of the carbonate deposits bearing Zoophycos provided the basis for distinguishing three distinct types of sedimentary sequences including Zoophycos (type A, B, and C) in shallow marine sediments of Mobarak Formation. Type A is composed of rare to common density of small to medium lobed Zoophycos. Type B is characterized by common density of medium lobed Zoophycos. This ichnogenus in type A and B is associated with Palaeophycus. The low diversity and bioturbation of the trace fossils would be the result of a stressful environment characterized by optimal water circulation and high-energy conditions. Type C consists of abundant density of large lobed Zoophycos. Type C is associated with Chondrites and planolites. The high diversity and bioturbation of the trace fossils in type C than type A and B would be the result of a calm environment characterized low-energy conditions. Under low sedimentation rate, stable paleoenvironment, dysaerobic conditions, and high amount of benthic food, the size of Zoophycos is the biggest, whereas in the high sedimentation rate, unstable paleoenvironment, aerobic conditions, and shortage of benthic food, the size of Zoophycos is small.

Research paper thumbnail of Sokolowia Horizon of the Ziarat Formation (Eastern Alborz, Iran): Biostratigraphic and Paleogeographic Implications

Acta Palaeontologica Romaniae, 2019

The present study deals with molluscan accumulations of the Sokolowia horizon, which is a key-bed... more The present study deals with molluscan accumulations of the Sokolowia horizon, which is a key-bed in the middle Eocene of the Kalateh section (Ziarat Formation, Eastern Alborz, Iran). The age of this “key horizon” is at-tributed to Bartonian based on presence of larger benthic foraminifera species such as Nummulites lyelli (D'Archiac & Haime), Orbitoclypeus zitteli (Checchia-Rispoli) and Asterocyclina stella stella (Gümbel) immediately below it. The paleogeographic distribution of Sokolowia occurrence from Tarim Basin in eastern Central Asia to the Transylvanian Basin in southeastern Europe indicates a middle Eocene seaway along the southern margin of an Eurasian epicontinental sea. In particular, the comparison of middle Paleogene sequences in different Central Asian regions reveals an apparent similarity between those basins pointing to their genetic relationship.

Research paper thumbnail of Sequence stratigraphic significance of shell concentrations in the Mobarak Formation (Mississippian), Alborz Zone, Northern Iran

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2019

Research paper thumbnail of Viséan-Serpukhovian (Mississippian) archaediscoid foraminifers of the northern Alborz, Iran

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2017

Research paper thumbnail of Mississippian lithofacies and foraminiferal biozonation of the Alborz Mountains, Iran: Implications for regional geology

Geological Journal, 2018

The Mississippian rocks at 5 sections, Kalariz, Peyghambaran, Jaban, Naserabad, and Dozdehban, ha... more The Mississippian rocks at 5 sections, Kalariz, Peyghambaran, Jaban, Naserabad, and Dozdehban, have been measured and sampled in a SE-NW direction across the Alborz Mountains. Foraminiferal zones recognized in those sections, as well as a revision of other foraminiferal assemblage previously published from the Alborz Mountains, allow to recognize 12 biozones: 5 in the Tournaisian: Unilocular (MFZ1-MFZ2? interval), Septabrunsiina krainica (MFZ3-MFZ5 interval), Eotextularia diversa (MFZ6), Darjella monilis (MFZ7), and primitive Eoparastaffella (MFZ8); 5 Viséan biozones: Eoparastaffella simplex (MFZ9), primitive archaediscids (MFZ10), Uralodiscus rotundus (MFZ11), Pojarkovella-Koskinotextularia (MFZ12), Neoarchaediscus (Upper Mikhailovian), Howchinia gibba-Archaediscus/Paraarchaediscus at angulatus-tenuis stage-Neoarchaediscus akchimensis (Venevian substage); and 2 Serpukhovian biozones: Biseriella parva-Climacammina (Tarusian-Steshevian substages) and Turrispiroides multivolutus-Brenckleina-Eostaffellina protvae (Protvian substage) for the Mississippian rocks of Alborz. Analysis of foraminiferal assemblages indicates a noticeable age difference of the Mississippian rocks between the northern and southern flanks of Alborz. Accordingly, southeastern and east-central Alborz (Kalariz, Peyghambaran, and Jaban sections) display complete Tournaisian deposits (MFZ1-MFZ8), whereas northern Alborz contains the strata dated from Late Tournaisian to Late Serpukhovian (MFZ8-MFZ16). The sedimentological studies also reveal sharp facies variations following the mentioned age variation. Previously, the age variations of these rocks were attributed to various events, such as the Mississippian glaciation phases. However, the age, facies, and thickness variations of lithostratigraphic units in the Alborz are not specific to the Mississippian and are reported during the entire Palaeozoic and even Mesozoic and Cenozoic. They can rather be attributed to the inherited basement and syn-sedimentary E-W-trending faults.

Research paper thumbnail of Estimation of Species Richness of Permian Foraminifera in Non-Parametric Methods and Investigation of Its Change Trend in Central Alborz, Western Tethys

Open Journal of Geology, 2017

Species richness of foraminifera assemblages in the Permian succession, contains Dorud, Ruteh and... more Species richness of foraminifera assemblages in the Permian succession, contains Dorud, Ruteh and Nessen Formations, in Central Alborz-North of Iran, was estimated and studied based on lithostratigraphy and microbiostratigraphy of Permian. We used four non-parametric estimators to investigate the species richness: Chao 2, Jackknife 1, Jackknife 2 and bootstrap. These methods estimates the species richness based on the presence/absence data of each taxon identified in the samples. We use the submenu of quadrat richness in "Past" [1] software to estimate richness in regional chronostratigraphic stages.The results show that the estimated diversity of foraminiferal assemblages with the exception of late Yakhtashian, increased constantly from Asselian to Murgabian with the highest diversity of foraminifera seen in the Murgabian. The main decrease in foraminiferal species richness happened during the Midian which corresponds to the kamura cooling event.

Research paper thumbnail of New data on the Late Viséan–Late Serpukhovian foraminifers of northern Alborz, Iran (biostratigraphic implications)

Revue de Micropaléontologie, 2017

Nouvelles données sur les foraminifères viséens-serpoukhoviens de l'Elbourz septentrional, Iran (... more Nouvelles données sur les foraminifères viséens-serpoukhoviens de l'Elbourz septentrional, Iran (implications biostratigraphiques

Research paper thumbnail of Microfacies and biofabric of nummulite accumulations (Bank) from the Eocene deposits of Western Alborz (NW Iran)

Journal of African Earth Sciences, 2016

The nummulite bank from the Eocene Ziarat Formation is described for the first time from Alborz, ... more The nummulite bank from the Eocene Ziarat Formation is described for the first time from Alborz, Iran, enhancing the record of these nummulite-rich accumulations in the Eocene of the circum-Tethyan carbonate platform. Five microfacies types have been defined within the shallow-water carbonate deposits of the Ziarat formation located in the western Alborz zone. Microfacies type 1 contains the most diverse Alveolina species associated with predominance of Nummulites A-forms. Microfacies type 2 is characterized by the presence of bivalve (oysters) fragments. Microfacies type 3 is supported by the high abundance of nummulitids. Microfacies type 4 is dominated by the occurrence of encrusting foraminifera-algal with flat growth forms that are mainly formed within the acervulinids assemblage. Finally, there is the presence of orthophragminids and nummuitids represented by microfacies type 5. Microfacies data obtained from the investigation area show that nummulite banks were formed within the back, core and fore-bank palaeoenvironments. The classification method of this paper is based on use biometric, biofabric, taphonomic and palaeoecological characteristics of larger benthic foraminifera. In addition, the calculated intraskeletal porosity by the use of numerous sections and FE-SEM images of Nummulites tests were displacement of tests in order to achieve a better understanding of paleo-conditions that occurred during sedimentation. We conclude that differences among bank frameworks suggest that small biconvex A-forms of Nummulites tests along with alveolinids were living in shallow, euphotic waters, whereas robust and ovate nummulitid tests thrived and concentrated in the intermediate (40-80 m) water with biofabrics in the min-scales, which indicates the influence of waves and currents in combination with wave-winnowing processes. More distal accumulations, the fore-bank were characterized by orthophragminid and nummulitid tests in the deeper part of the photic zone.

Research paper thumbnail of The Effect of Ziziphus Jujuba Fruit Extract in Diabetic and Non-Diabetic Rat

Iranian Journal of Diabetes and Obesity, Mar 15, 2014

Objective:Herbal medicine and medical plants such as Ziziphus Jujuba are widely used in the treat... more Objective:Herbal medicine and medical plants such as Ziziphus Jujuba are widely used in the treatment of diseases such as diabetes mellitus. We investigated the effects of ethanol extracts of Ziziphus Jujuba fruit on serum glucose, triglycerides, LDL-cholesterol, HDLcholesterol, cholesterol and activities of aminotransferase enzymes in streptozocin-induced diabetic adult male rats. Materials and Methods: Adult Wistar rats were rendered hyperglycemic. Animals were divided into four equal groups (7 per group). Animals in all groups were treated for 14 days. Blood samples were collected from the heart of the animals. Results: Continuous supplementation of ethanol extract in drinkable water of diabetic rats resulted to a significant decrease of fasting blood glucose, cholesterol and increase in high density lipoprotein levels after 14 days (P<0.05), but the levels of triglycerides, LDL-cholestrol, activities of alanine aminotransferase and aspartate aminotransferase did not changed significantly in treatment group compared to control group(P>0.05). Conclusion: This paper discussed the antidiabetic effect of an alcoholic extract of Ziziphus Jujuba on streptozocin-induced diabetes in rats. Researchers showed that Streptozocin injection led to diabetes mellitus, which may be due to destruction of β cells of the islets of Langerhans.

Research paper thumbnail of Nummulitids of the shallow-marine middle Eocene limestones from the central Iran region: taxonomic and biostratigraphic implications

Micropaleontology

Nummulitid tests are recorded for the first time from an upper Lutetian limestone outcrop of the ... more Nummulitid tests are recorded for the first time from an upper Lutetian limestone outcrop of the Tihoieyeh section, exposed in the southwestern Jiroft region of central Iran. Detailed studies on their systematics and biostratigraphy resulted in the diagnosis of three nummulitid taxa as Assilina exponens Sowerby 1840, Nummulites deshayesi D’Archiac and Haime 1853 and Nummulites sp. cf. N. praelyelli. These larger benthic foraminifera are associated with calcareous nannofossil assemblages assignable to the SBZ16, NP16/CNE14 biozones.

Research paper thumbnail of Carboniferous Conodonts Biostratigraghy in Kiyasar Region and Introduction 7 Biozones Comparable to World Standard Conodont Zonation

فصلنامه علمی علوم زمین, Feb 20, 2011

Lower-Middle costatus zone Siphonodella presulcata Siphonodella presulcata zone Hangenberg (Disco... more Lower-Middle costatus zone Siphonodella presulcata Siphonodella presulcata zone Hangenberg (Disconformity) 1) sulcata zone 2) duplicata zone 3) sandbergi-L. crenulata zone 4) typicus zone 5) anchoralis-latus zone 6) texanus-A.scalenus zone 7) Gnathodus bilineatus zone

Research paper thumbnail of Biostratigraphic Interpretation and Systematics of Some Alveolina Species Assemblages in the Ziarat Formation from Soltanieh Mountains (Western Alborz)

فصلنامه علمی-پژوهشی علوم زمین, May 22, 2015

Research paper thumbnail of Archaediscoid foraminifers and their significance in biostratigraphy and chronostratigraphy of the lower Carboniferous deposits, a case study on the northern Alborz

Journal of Stratigraphy and Sedimentology Researches, 2017

A relatively complete succession of Viséan to Serpukhovian rocks is exposed in the northern Albor... more A relatively complete succession of Viséan to Serpukhovian rocks is exposed in the northern Alborz, where two sections Naserabad and Dozdehban have been selected for their biostratigraphic interest. The archaediscoids are probably the best stratigraphical microfossils during the Viséan and Serpukhovian. In this study, the archaediscoids of northern Alborz are analyzed owing to their potential in biostratigraphic and chronostratigraphic subdivisions. During the early Viséan, MFZ9 foraminiferal biozone, the proposed ancestor of the archaediscoids Lapparentidiscus appears followed by the massive occurrence of primitive archaediscids, defining the MFZ10 biozone. The MFZ11 can be well defined by the first occurrence of Uralodiscus rotundus. The base of MFZ12 of this area is characterized by the first occurrence of Nodosarchaediscus and the top by Paraarchaediscus at concavus-angulatus stage. The lower upper Viséan rocks might be absent from the northern Alborz, probably because a mid-Vis...

Research paper thumbnail of Pore throat size characterization of carbonate reservoirs by integrating core data, well logs and seismic attributes

Investigation of pore system properties of carbonate reservoirs has an important role in evaluati... more Investigation of pore system properties of carbonate reservoirs has an important role in evaluating the reservoir quality and delineating high production intervals. The current study proposes a three-step approach for pore throat size characterization of these reservoirs, by integrating core data, well logs and 3D seismic volume. In this respect, first the pore throats size was calculated using Pittman and Winland models based upon routine core analysis data, and calibrating the results with the laboratory-derived capillary pressure curves. In the second step, the pore throat size as a continuous log was calculated using petrophysical data for each studied well. Finally, the calculated pore throat size log was tied to 3D seismic data at well locations. The results show that seismic attributes including acoustic impedance, amplitude envelope, filter 15/20-25/30 and derivative instantaneous amplitude are the best predictor set for converting the 3D seismic volume into a pore size cube...

Research paper thumbnail of Visean calcareous algae from Zanus and Abnak sections of Mobarak Formation, central Alborz, Iran

Research paper thumbnail of Porosity development in central Alborz Upper Jurassic deposits (N-Iran): sequence stratigraphy, diagenesis and mechanical stratigraphy

Neues Jahrbuch Fur Geologie Und Palaontologie-abhandlungen, 2021

Research paper thumbnail of ABSTRACT: Organic Geochemical Investigation on Lower Carboniferous Organic Rish Sediments (Mobarak Formation) in Eastern Alborz, Iran

Research paper thumbnail of Evaluation of Residual Diazinon and Chlorpiryfos in Children Herbal Medicines by Headspace-SPME and GC-FID

Iranian Journal of Pharmaceutical Research : IJPR, 2014

The oldest method for the managing of the illness is the use of medicinal plants. The use of herb... more The oldest method for the managing of the illness is the use of medicinal plants. The use of herbal products as the first choice in self-treatment of minor conditions continues to expand rapidly across Iran. This makes the safety of herbal products an important public health issue. Pesticides are used widely in agriculture to increase the production by controlling the harmful insects and disease vectors, however it has some hazards on biological system of human especially children. The present study was designed to examine the residual amount of organophosphorus pesticides (Diazinon and Chlorpyrifos) in children herbal medicines available in the Iranian market. Five children herbal medicine liquid dosage forms were purchased from pharmacy store. They were extracted with SPME (Solid Phase Microextraction) using the PDMS-DVB fibre. Then the extracts were injected into a GC. The gas chromatograph was Younglin model YL 6100 equipped with a flame ionization detector. The column was Techn...

Research paper thumbnail of Evaluation of Sodium Valproate Low Dose Efficacy in Radicular Pain Management and It’s Relation with Pharmacokinetics Parameters

BioMedicine, 2020

Background: Radiculopathy due to lumbar or cervical disc disease is the most common chronic neuro... more Background: Radiculopathy due to lumbar or cervical disc disease is the most common chronic neuropathic pain in adults. The aim of present study was evaluation of low dose of sodium valproate (VPA) on radicular pain and determining VPA pharmacokinetics. Materials and Methods: In this double blind randomized placebo control clinical study, 80 patients with established lumbar or cervical radicular pain, have been randomly allocated into two study groups: 40 have received sodium valproate 200 mg/day and Celecoxib 100 mg/day and acetaminophen 500 mg PRN as rescue medication, and second group has received placebo, Celecoxib and acetaminophen. Quantitative assessment of pain was done by visual analogue scale (VAS) prior to perform the intervention and after ten days (treatment duration). Blood sample has been taken for determining mean through concentration after five half-lives. Evaluation of plasma concentration of VPA and that of efficacy on pain score relationship by comparing VAS before and after the therapy was done. Results: Group A and B have demonstrated significant alleviation in mean VAS score; ¡21.97 ± 25.41, ¡14.39 ± 23.03 respectively (P < 0.001). The mean plasma concentration of VPA in group A was: 26.9 ± 13.5 mg/L. Moreover, no significant correlation was seen between pain score with age, gender, and weight (p > 0.05). Conclusion: Low dose of sodium valproate especially together with NSAIDs demonstrated good efficacy in lumbar and cervical radicular pain management.

Research paper thumbnail of Bryozoan fauna from the Mobarak Formation (Mississippian), northern Iran

PalZ, 2019

Four bryozoan species were identified from the Mississippian (Viséan) Mobarak Formation of northe... more Four bryozoan species were identified from the Mississippian (Viséan) Mobarak Formation of northern Iran: the cystoporates Fistulipora longituba Yang and Lu, Fistulipora djebaglinica Nikiforova, Fistulipora sp., and the trepostome Hinaclema sakagamii Schastlivtseva. The cystoporates are represented by large massive, mainly multilayered colonies, whereas Hinaclema sakagamii encrusts (often also multilayered) on two colonies of Fistulipora. The identified species show palaeobiogeographical relationships to the Mississippian of China, Kazakhstan, and Uzbekistan.

Research paper thumbnail of Zoophycosichnogenus distribution and paleoenvironmental analysis: examples from the Mississippian Mobarak formation (Alborz Basin, Iran)

Historical Biology, 2018

Zoophycos is a characteristic trace fossil in the Mississippian in the Alborz Basin deposits of n... more Zoophycos is a characteristic trace fossil in the Mississippian in the Alborz Basin deposits of north Iran, and is described for the first time in the Mobarak Formation. The vertical distribution of the carbonate deposits bearing Zoophycos provided the basis for distinguishing three distinct types of sedimentary sequences including Zoophycos (type A, B, and C) in shallow marine sediments of Mobarak Formation. Type A is composed of rare to common density of small to medium lobed Zoophycos. Type B is characterized by common density of medium lobed Zoophycos. This ichnogenus in type A and B is associated with Palaeophycus. The low diversity and bioturbation of the trace fossils would be the result of a stressful environment characterized by optimal water circulation and high-energy conditions. Type C consists of abundant density of large lobed Zoophycos. Type C is associated with Chondrites and planolites. The high diversity and bioturbation of the trace fossils in type C than type A and B would be the result of a calm environment characterized low-energy conditions. Under low sedimentation rate, stable paleoenvironment, dysaerobic conditions, and high amount of benthic food, the size of Zoophycos is the biggest, whereas in the high sedimentation rate, unstable paleoenvironment, aerobic conditions, and shortage of benthic food, the size of Zoophycos is small.

Research paper thumbnail of Sokolowia Horizon of the Ziarat Formation (Eastern Alborz, Iran): Biostratigraphic and Paleogeographic Implications

Acta Palaeontologica Romaniae, 2019

The present study deals with molluscan accumulations of the Sokolowia horizon, which is a key-bed... more The present study deals with molluscan accumulations of the Sokolowia horizon, which is a key-bed in the middle Eocene of the Kalateh section (Ziarat Formation, Eastern Alborz, Iran). The age of this “key horizon” is at-tributed to Bartonian based on presence of larger benthic foraminifera species such as Nummulites lyelli (D'Archiac & Haime), Orbitoclypeus zitteli (Checchia-Rispoli) and Asterocyclina stella stella (Gümbel) immediately below it. The paleogeographic distribution of Sokolowia occurrence from Tarim Basin in eastern Central Asia to the Transylvanian Basin in southeastern Europe indicates a middle Eocene seaway along the southern margin of an Eurasian epicontinental sea. In particular, the comparison of middle Paleogene sequences in different Central Asian regions reveals an apparent similarity between those basins pointing to their genetic relationship.

Research paper thumbnail of Sequence stratigraphic significance of shell concentrations in the Mobarak Formation (Mississippian), Alborz Zone, Northern Iran

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2019

Research paper thumbnail of Viséan-Serpukhovian (Mississippian) archaediscoid foraminifers of the northern Alborz, Iran

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2017

Research paper thumbnail of Mississippian lithofacies and foraminiferal biozonation of the Alborz Mountains, Iran: Implications for regional geology

Geological Journal, 2018

The Mississippian rocks at 5 sections, Kalariz, Peyghambaran, Jaban, Naserabad, and Dozdehban, ha... more The Mississippian rocks at 5 sections, Kalariz, Peyghambaran, Jaban, Naserabad, and Dozdehban, have been measured and sampled in a SE-NW direction across the Alborz Mountains. Foraminiferal zones recognized in those sections, as well as a revision of other foraminiferal assemblage previously published from the Alborz Mountains, allow to recognize 12 biozones: 5 in the Tournaisian: Unilocular (MFZ1-MFZ2? interval), Septabrunsiina krainica (MFZ3-MFZ5 interval), Eotextularia diversa (MFZ6), Darjella monilis (MFZ7), and primitive Eoparastaffella (MFZ8); 5 Viséan biozones: Eoparastaffella simplex (MFZ9), primitive archaediscids (MFZ10), Uralodiscus rotundus (MFZ11), Pojarkovella-Koskinotextularia (MFZ12), Neoarchaediscus (Upper Mikhailovian), Howchinia gibba-Archaediscus/Paraarchaediscus at angulatus-tenuis stage-Neoarchaediscus akchimensis (Venevian substage); and 2 Serpukhovian biozones: Biseriella parva-Climacammina (Tarusian-Steshevian substages) and Turrispiroides multivolutus-Brenckleina-Eostaffellina protvae (Protvian substage) for the Mississippian rocks of Alborz. Analysis of foraminiferal assemblages indicates a noticeable age difference of the Mississippian rocks between the northern and southern flanks of Alborz. Accordingly, southeastern and east-central Alborz (Kalariz, Peyghambaran, and Jaban sections) display complete Tournaisian deposits (MFZ1-MFZ8), whereas northern Alborz contains the strata dated from Late Tournaisian to Late Serpukhovian (MFZ8-MFZ16). The sedimentological studies also reveal sharp facies variations following the mentioned age variation. Previously, the age variations of these rocks were attributed to various events, such as the Mississippian glaciation phases. However, the age, facies, and thickness variations of lithostratigraphic units in the Alborz are not specific to the Mississippian and are reported during the entire Palaeozoic and even Mesozoic and Cenozoic. They can rather be attributed to the inherited basement and syn-sedimentary E-W-trending faults.

Research paper thumbnail of Estimation of Species Richness of Permian Foraminifera in Non-Parametric Methods and Investigation of Its Change Trend in Central Alborz, Western Tethys

Open Journal of Geology, 2017

Species richness of foraminifera assemblages in the Permian succession, contains Dorud, Ruteh and... more Species richness of foraminifera assemblages in the Permian succession, contains Dorud, Ruteh and Nessen Formations, in Central Alborz-North of Iran, was estimated and studied based on lithostratigraphy and microbiostratigraphy of Permian. We used four non-parametric estimators to investigate the species richness: Chao 2, Jackknife 1, Jackknife 2 and bootstrap. These methods estimates the species richness based on the presence/absence data of each taxon identified in the samples. We use the submenu of quadrat richness in "Past" [1] software to estimate richness in regional chronostratigraphic stages.The results show that the estimated diversity of foraminiferal assemblages with the exception of late Yakhtashian, increased constantly from Asselian to Murgabian with the highest diversity of foraminifera seen in the Murgabian. The main decrease in foraminiferal species richness happened during the Midian which corresponds to the kamura cooling event.

Research paper thumbnail of New data on the Late Viséan–Late Serpukhovian foraminifers of northern Alborz, Iran (biostratigraphic implications)

Revue de Micropaléontologie, 2017

Nouvelles données sur les foraminifères viséens-serpoukhoviens de l'Elbourz septentrional, Iran (... more Nouvelles données sur les foraminifères viséens-serpoukhoviens de l'Elbourz septentrional, Iran (implications biostratigraphiques

Research paper thumbnail of Microfacies and biofabric of nummulite accumulations (Bank) from the Eocene deposits of Western Alborz (NW Iran)

Journal of African Earth Sciences, 2016

The nummulite bank from the Eocene Ziarat Formation is described for the first time from Alborz, ... more The nummulite bank from the Eocene Ziarat Formation is described for the first time from Alborz, Iran, enhancing the record of these nummulite-rich accumulations in the Eocene of the circum-Tethyan carbonate platform. Five microfacies types have been defined within the shallow-water carbonate deposits of the Ziarat formation located in the western Alborz zone. Microfacies type 1 contains the most diverse Alveolina species associated with predominance of Nummulites A-forms. Microfacies type 2 is characterized by the presence of bivalve (oysters) fragments. Microfacies type 3 is supported by the high abundance of nummulitids. Microfacies type 4 is dominated by the occurrence of encrusting foraminifera-algal with flat growth forms that are mainly formed within the acervulinids assemblage. Finally, there is the presence of orthophragminids and nummuitids represented by microfacies type 5. Microfacies data obtained from the investigation area show that nummulite banks were formed within the back, core and fore-bank palaeoenvironments. The classification method of this paper is based on use biometric, biofabric, taphonomic and palaeoecological characteristics of larger benthic foraminifera. In addition, the calculated intraskeletal porosity by the use of numerous sections and FE-SEM images of Nummulites tests were displacement of tests in order to achieve a better understanding of paleo-conditions that occurred during sedimentation. We conclude that differences among bank frameworks suggest that small biconvex A-forms of Nummulites tests along with alveolinids were living in shallow, euphotic waters, whereas robust and ovate nummulitid tests thrived and concentrated in the intermediate (40-80 m) water with biofabrics in the min-scales, which indicates the influence of waves and currents in combination with wave-winnowing processes. More distal accumulations, the fore-bank were characterized by orthophragminid and nummulitid tests in the deeper part of the photic zone.

Research paper thumbnail of The Effect of Ziziphus Jujuba Fruit Extract in Diabetic and Non-Diabetic Rat

Iranian Journal of Diabetes and Obesity, Mar 15, 2014

Objective:Herbal medicine and medical plants such as Ziziphus Jujuba are widely used in the treat... more Objective:Herbal medicine and medical plants such as Ziziphus Jujuba are widely used in the treatment of diseases such as diabetes mellitus. We investigated the effects of ethanol extracts of Ziziphus Jujuba fruit on serum glucose, triglycerides, LDL-cholesterol, HDLcholesterol, cholesterol and activities of aminotransferase enzymes in streptozocin-induced diabetic adult male rats. Materials and Methods: Adult Wistar rats were rendered hyperglycemic. Animals were divided into four equal groups (7 per group). Animals in all groups were treated for 14 days. Blood samples were collected from the heart of the animals. Results: Continuous supplementation of ethanol extract in drinkable water of diabetic rats resulted to a significant decrease of fasting blood glucose, cholesterol and increase in high density lipoprotein levels after 14 days (P<0.05), but the levels of triglycerides, LDL-cholestrol, activities of alanine aminotransferase and aspartate aminotransferase did not changed significantly in treatment group compared to control group(P>0.05). Conclusion: This paper discussed the antidiabetic effect of an alcoholic extract of Ziziphus Jujuba on streptozocin-induced diabetes in rats. Researchers showed that Streptozocin injection led to diabetes mellitus, which may be due to destruction of β cells of the islets of Langerhans.