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Papers by Asmaa A. Abdallah

SLOVENIAN VETERINARY RESEARCH

The current study was designed to evaluate the changes in vaginal cytology and serum progesterone... more The current study was designed to evaluate the changes in vaginal cytology and serum progesterone and estrogen concentration in anestrum bitches treated with a combination of FSH and LH. Seven healthy Mongrel anestrum bitches were treated with daily administration of 75 I.U. FSH plus 75 I.U LH for consecutive nine days and another three bitches were kept as a control without any treatment. Treated and control bitches were examined for the percentages of different vaginal-cytology cells, serum concentration of estrogen and progesterone, and signs of proestrus and estrus in a scheduled timeline. Five of the seven treated bitches (71.4%) showed a gradual decrease in the percentage of parabasal cells, a gradual increase in the percentage of cornified and RBCs, a rapid decrease in the estrogen concentration, and an increase in the progesterone concentration. These five bitches showed signs of proestrus and four of them showed male acceptance and were conceived. These five bitches had hig...

Life

Chlorpyrifos (CPF) is a common organophosphorus insecticide. It is associated with negative conse... more Chlorpyrifos (CPF) is a common organophosphorus insecticide. It is associated with negative consequences such as neurotoxicity and reproductive injury. This study aimed to observe the ability of olive leaf extract to attenuate chlorpyrifos toxicity, which induced neuro- and reproductive toxicity in male albino rats. Olive leaf extract (OLE) exhibits potent antioxidant and antiapoptotic properties. Twenty-two mature male rats were divided into four groups: control (saline), CPF (9 mg/kg), OLE (150 mg/kg), and CPF + OLE. Treatment was administered orally for 80 days. The CPF significantly reduced serum sex hormones, sperm counts and motility, high oxidants (MDA), and depleted antioxidants (GSH, SOD, TAC) in the brain and testes homogenate; additionally, it decreased serum AChE and brain neurotransmitters, increased Bax, decreased Bcl-2, and boosted caspase-3 immune expression in neural and testicular cells. Immunological expression of Ki 67 in the cerebrum, cerebellum, choroid plexus,...

Olive Leaf Extract Attenuates Chlorpyrifos-Induced Neuro-and Reproductive Toxicity in Male Albino Rats, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Infertility problem is a common syndrome among bitches and its causes are numerous, but the appar... more Infertility problem is a common syndrome among bitches and its causes are numerous, but the apparent most frequent cause is the mating at incorrect time. The aim of this study was to avoid the possible causes of infertility in bitches by predicting the optimal time of breeding and try to treat disorders in estrus cycles. A total number of 18 bitches of German shepherd breed were used in this study for monitoring phases of estrus cycle and predicting the optimal time of breeding. Those bitches examined by vaginal cytology, progesterone assay, measurement of vaginal PH, vaginal endoscopy and ultrasonographic examination of ovaries from proestrus to diestrus. By vaginal cytology, cornified cells first appeared on Day 4 from the beginning of proestrus, then increased till reached to 85% on Day 12 which is considered as the ovulation day. Measuring of progesterone concentration at the beginning of proestrus was very low (less than 1 ng/ml) then increased in 13 bitches only out of 18 bit...

Zagazig Veterinary Journal, 2019

In the present study, seven mongrel bitches were used, their age ranged from 15 months to 3 years... more In the present study, seven mongrel bitches were used, their age ranged from 15 months to 3 years. Vaginal cytology was carried out during pregnancy period of these bitches by taking vaginal smears weekly to investigate vaginal cytological changes. Serial ultrasonography was performed daily on these bitches from the 15 th day after the last breeding until birth day to determine the time of appearance of different gestational structures. The first observation of the extra-fetal and fetal structures was as follows: The yolk sac membrane was first detected as an echogenic U-shaped fetal membrane in a range of 24-25 days. A third echogenic fetal membrane, allantoic membrane, was first detected on Day 27. On Day 23, in the uterine wall surrounding the gestational sac, an apparently hyperechoic inner layer was differentiated to the zonary placenta which appeared as two thick bands one on either side of the fetus on Day 29. The embryo appearance was on Day 20.5. The early time of the position of the embryo either opposed to the uterine wall or dependent on chorionic cavity was nearly on Day 22 and on Day 24, respectively. The heartbeat, which is one of fetal vital signs, was detected as a bright echogenic flickering motion on Day 21. On Day 26 in mongrel bitches, the features of the embryo changed from an oblong to bipolar shape and form two loops of number 8, size and density the same. An anechoic area in the head of the embryo was detected on Day 29. The limb buds were firstly detected on Day 29. Fetal movement was firstly detected on Day 33. Meanwhile, the skeleton of the fetus was first detected as hyperechoic structure on Day 33.

March-2021, 2021

Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by ... more Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by decreasing level of calcium less than 10 mg/dL. This investigation characterized the hematological and biochemical profiles of peri-parturient hypocalcemia in goats and study the effects of hypocalcemia on uterine involution during the postpartum period on day 0 and then weekly postpartum (day +7, +14, +21, +28, +35, till +42). Materials and Methods: Forty-five polyparous native breed does age 3-5 years and weighing 40–60 kg were assigned to control and hypocalcemia groups based on their health history, clinical and biochemical findings. The control group included 10 clinically healthy pregnant does, and the hypocalcemia group included 35 late pregnant does that suffered from anorexia, weakness, muscle tremors of the hind limbs, and an inability to stand. Clinical examination and blood sampling in both groups were performed approximately 14 days before the expected time of kidding (day–1...

Veterinary World, Mar 2, 2021

Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by ... more Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by decreasing level of calcium less than 10 mg/dL. This investigation characterized the hematological and biochemical profiles of peri-parturient hypocalcemia in goats and study the effects of hypocalcemia on uterine involution during the postpartum period on day 0 and then weekly postpartum (day +7, +14, +21, +28, +35, till +42).

Materials and Methods: Forty-five polyparous native breed does age 3-5 years and weighing 40–60 kg were assigned to control and hypocalcemia groups based on their health history, clinical and biochemical findings. The control group included 10 clinically healthy pregnant does, and the hypocalcemia group included 35 late pregnant does that suffered from anorexia, weakness, muscle tremors of the hind limbs, and an inability to stand. Clinical examination and blood sampling in both groups were performed approximately 14 days before the expected time of kidding (day–14), at kidding day (day 0), on day +21, and +42 postpartum. Sonographic measurements were used to monitor uterine involution on day 0 and then weekly once the animal was postpartum (day +7, +14, +21, +28, +35, till +42) in both groups.

Results: Results of sonographic measurement revealed that the hypocalcemia group had a greater (p<0.05) size of the uterus as assessed transrectally and retarded uterine involution when compared with the control group. Laboratory findings revealed that does in both groups showed lower red blood cells, packed cell volume%, and hemoglobin (Hb) concentrations on day –14 before kidding and day 0 when compared with postpartum measurements. A significant increase (p<0.05) in total leukocyte counts, neutrophil, serum glucose, and cortisol levels with a significant decrease (p<0.05) in lymphocytes. Significant decreases (p<0.05) in serum calcium, phosphorous, vitamin D, and total antioxidant capacity levels with significant (p<0.05) increases in serum malondialdehyde were recorded on day 0 and day –14 in the hypocalcemia group when compared with the control group.

Conclusion: This investigation provides evidence that hypocalcemia in does causes both metabolic and oxidative stress during peri-parturient periods while also retarding uterine involution during postpartum periods.

SLOVENIAN VETERINARY RESEARCH

The current study was designed to evaluate the changes in vaginal cytology and serum progesterone... more The current study was designed to evaluate the changes in vaginal cytology and serum progesterone and estrogen concentration in anestrum bitches treated with a combination of FSH and LH. Seven healthy Mongrel anestrum bitches were treated with daily administration of 75 I.U. FSH plus 75 I.U LH for consecutive nine days and another three bitches were kept as a control without any treatment. Treated and control bitches were examined for the percentages of different vaginal-cytology cells, serum concentration of estrogen and progesterone, and signs of proestrus and estrus in a scheduled timeline. Five of the seven treated bitches (71.4%) showed a gradual decrease in the percentage of parabasal cells, a gradual increase in the percentage of cornified and RBCs, a rapid decrease in the estrogen concentration, and an increase in the progesterone concentration. These five bitches showed signs of proestrus and four of them showed male acceptance and were conceived. These five bitches had hig...

Life

Chlorpyrifos (CPF) is a common organophosphorus insecticide. It is associated with negative conse... more Chlorpyrifos (CPF) is a common organophosphorus insecticide. It is associated with negative consequences such as neurotoxicity and reproductive injury. This study aimed to observe the ability of olive leaf extract to attenuate chlorpyrifos toxicity, which induced neuro- and reproductive toxicity in male albino rats. Olive leaf extract (OLE) exhibits potent antioxidant and antiapoptotic properties. Twenty-two mature male rats were divided into four groups: control (saline), CPF (9 mg/kg), OLE (150 mg/kg), and CPF + OLE. Treatment was administered orally for 80 days. The CPF significantly reduced serum sex hormones, sperm counts and motility, high oxidants (MDA), and depleted antioxidants (GSH, SOD, TAC) in the brain and testes homogenate; additionally, it decreased serum AChE and brain neurotransmitters, increased Bax, decreased Bcl-2, and boosted caspase-3 immune expression in neural and testicular cells. Immunological expression of Ki 67 in the cerebrum, cerebellum, choroid plexus,...

Olive Leaf Extract Attenuates Chlorpyrifos-Induced Neuro-and Reproductive Toxicity in Male Albino Rats, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Infertility problem is a common syndrome among bitches and its causes are numerous, but the appar... more Infertility problem is a common syndrome among bitches and its causes are numerous, but the apparent most frequent cause is the mating at incorrect time. The aim of this study was to avoid the possible causes of infertility in bitches by predicting the optimal time of breeding and try to treat disorders in estrus cycles. A total number of 18 bitches of German shepherd breed were used in this study for monitoring phases of estrus cycle and predicting the optimal time of breeding. Those bitches examined by vaginal cytology, progesterone assay, measurement of vaginal PH, vaginal endoscopy and ultrasonographic examination of ovaries from proestrus to diestrus. By vaginal cytology, cornified cells first appeared on Day 4 from the beginning of proestrus, then increased till reached to 85% on Day 12 which is considered as the ovulation day. Measuring of progesterone concentration at the beginning of proestrus was very low (less than 1 ng/ml) then increased in 13 bitches only out of 18 bit...

Zagazig Veterinary Journal, 2019

In the present study, seven mongrel bitches were used, their age ranged from 15 months to 3 years... more In the present study, seven mongrel bitches were used, their age ranged from 15 months to 3 years. Vaginal cytology was carried out during pregnancy period of these bitches by taking vaginal smears weekly to investigate vaginal cytological changes. Serial ultrasonography was performed daily on these bitches from the 15 th day after the last breeding until birth day to determine the time of appearance of different gestational structures. The first observation of the extra-fetal and fetal structures was as follows: The yolk sac membrane was first detected as an echogenic U-shaped fetal membrane in a range of 24-25 days. A third echogenic fetal membrane, allantoic membrane, was first detected on Day 27. On Day 23, in the uterine wall surrounding the gestational sac, an apparently hyperechoic inner layer was differentiated to the zonary placenta which appeared as two thick bands one on either side of the fetus on Day 29. The embryo appearance was on Day 20.5. The early time of the position of the embryo either opposed to the uterine wall or dependent on chorionic cavity was nearly on Day 22 and on Day 24, respectively. The heartbeat, which is one of fetal vital signs, was detected as a bright echogenic flickering motion on Day 21. On Day 26 in mongrel bitches, the features of the embryo changed from an oblong to bipolar shape and form two loops of number 8, size and density the same. An anechoic area in the head of the embryo was detected on Day 29. The limb buds were firstly detected on Day 29. Fetal movement was firstly detected on Day 33. Meanwhile, the skeleton of the fetus was first detected as hyperechoic structure on Day 33.

March-2021, 2021

Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by ... more Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by decreasing level of calcium less than 10 mg/dL. This investigation characterized the hematological and biochemical profiles of peri-parturient hypocalcemia in goats and study the effects of hypocalcemia on uterine involution during the postpartum period on day 0 and then weekly postpartum (day +7, +14, +21, +28, +35, till +42). Materials and Methods: Forty-five polyparous native breed does age 3-5 years and weighing 40–60 kg were assigned to control and hypocalcemia groups based on their health history, clinical and biochemical findings. The control group included 10 clinically healthy pregnant does, and the hypocalcemia group included 35 late pregnant does that suffered from anorexia, weakness, muscle tremors of the hind limbs, and an inability to stand. Clinical examination and blood sampling in both groups were performed approximately 14 days before the expected time of kidding (day–1...

Veterinary World, Mar 2, 2021

Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by ... more Background and Aim: Hypocalcemia in goats occurs around the time of parturition and is caused by decreasing level of calcium less than 10 mg/dL. This investigation characterized the hematological and biochemical profiles of peri-parturient hypocalcemia in goats and study the effects of hypocalcemia on uterine involution during the postpartum period on day 0 and then weekly postpartum (day +7, +14, +21, +28, +35, till +42).

Materials and Methods: Forty-five polyparous native breed does age 3-5 years and weighing 40–60 kg were assigned to control and hypocalcemia groups based on their health history, clinical and biochemical findings. The control group included 10 clinically healthy pregnant does, and the hypocalcemia group included 35 late pregnant does that suffered from anorexia, weakness, muscle tremors of the hind limbs, and an inability to stand. Clinical examination and blood sampling in both groups were performed approximately 14 days before the expected time of kidding (day–14), at kidding day (day 0), on day +21, and +42 postpartum. Sonographic measurements were used to monitor uterine involution on day 0 and then weekly once the animal was postpartum (day +7, +14, +21, +28, +35, till +42) in both groups.

Results: Results of sonographic measurement revealed that the hypocalcemia group had a greater (p<0.05) size of the uterus as assessed transrectally and retarded uterine involution when compared with the control group. Laboratory findings revealed that does in both groups showed lower red blood cells, packed cell volume%, and hemoglobin (Hb) concentrations on day –14 before kidding and day 0 when compared with postpartum measurements. A significant increase (p<0.05) in total leukocyte counts, neutrophil, serum glucose, and cortisol levels with a significant decrease (p<0.05) in lymphocytes. Significant decreases (p<0.05) in serum calcium, phosphorous, vitamin D, and total antioxidant capacity levels with significant (p<0.05) increases in serum malondialdehyde were recorded on day 0 and day –14 in the hypocalcemia group when compared with the control group.

Conclusion: This investigation provides evidence that hypocalcemia in does causes both metabolic and oxidative stress during peri-parturient periods while also retarding uterine involution during postpartum periods.