Publications by authors named "Muhammad Faheem Akhtar"

This review examines the genetic basis of meat production phenotypic traits in sheep, addressing the challenge of enhancing carcass and meat quality to meet global demand. The article identifies key potential genes associated with vertebral traits, body size, muscle development, and fat deposition across diverse sheep breeds worldwide. Through comprehensive analysis of recent literature (2018-2025), the study synthesizes findings from genome-wide association studies, candidate gene approaches, and transcriptomic analyses.

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Inhibin (INH) plays a key role in the regulation of the reproductive performance of geese. It inhibits follicle-stimulating hormone (FSH) secretion from the anterior pituitary gland to regulate spermatogenesis. Immunization against INH in male geese leads to the production of antibodies to neutralize the INH activity that enhances testicular function and gonadotropin production.

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Stem cells (SCs), distinguished by their capacity for self-renewal and multipotent differentiation, represent a cornerstone of regenerative medicine. These cells, which can be categorized according to their differentiation potential and developmental origin, have emerged as pivotal elements in both biomedical research and veterinary science. In herbivorous species, stem cell applications have yielded particularly promising advances across multiple domains, including reproductive biotechnology, tissue engineering and regeneration, therapeutic interventions, and immunomodulation.

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The present study was designed to investigate the potential role of inhibin immunization on plasma hormone concentration and testicular histoarchitecture of Dezhou donkeys in the nonbreeding season (November-February). For this purpose, adult Dezhou donkeys ( = 30) were equally divided into groups A, B, and C. Group A was actively immunized with 3 mg inhibin, group B with (1.

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Nutrition consistently affects microbe-host interactions in the gastrointestinal tract. This study aimed to unravel how undernutrition reshapes the microbial composition and the homeostasis of epithelium in the jejunum and ileum. Sixteen late-gestation Hu-sheep were randomly assigned to the control group ( = 8, 100% ad libitum feeding levels) or the undernutrition group ( = 8, which received 30% ad libitum feeding levels).

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Article Synopsis
  • Equine breeding significantly contributes to the economic development in various countries, particularly experiencing rapid growth in China, but large-scale donkey farms are struggling with high pregnancy loss rates.
  • There is a lack of systematic research on abortion causes in equine breeding, which include both infectious agents like viruses and bacteria, and non-infectious factors such as transportation stress and hormonal issues.
  • This review highlights the need for early detection and management of the causes of pregnancy losses in equines while stressing the importance of ongoing research and effective control measures to mitigate this issue.
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Microorganisms residing in the cecum of donkeys are crucial for physiological processes, nutrient metabolism, and immune function. Feeding methods can affect the dynamic balance of animal gut microbiota, thereby affecting indicators such as volatile fatty acids. This study explores suitable feeding methods to promote actual production by changing the feeding order of concentrate.

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  • - Previous research established that leucine (Leu) can boost the growth of equine skeletal muscle satellite cells (SCs), but its effects on slow-twitch muscle fibers and mitochondrial function were not fully understood.
  • - In this study, equine SCs were cultured with varying concentrations of Leu, revealing that a 2 mM concentration significantly enhanced the expression of slow-MyHC and various mitochondrial function-related genes compared to lower and higher doses.
  • - The research identified that Leu activates the AMPK and mTOR signaling pathways, and inhibiting these pathways with specific compounds (Compound C and Rapamycin) diminished Leu's positive effects on SCs, indicating Leu's role in promoting muscle fiber expression
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Porcine reproductive and respiratory syndrome virus (PRRSV) is a pathogen for swine, resulting in substantial economic losses to the swine industry. However, there has been little success in developing effective vaccines or drugs for PRRSV control. In the present study, we discovered that Diltiazem HCl, an inhibitor of L-type Ca channel, effectively suppresses PRRSV replication in MARC-145, PK-15 and PAM cells in dose-dependent manner.

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In this study, effects on the growth performance, nutrient digestibility, volatile fatty acids (VFA) production, and fecal microbiota of weaned donkeys were observed using different concentrate feeding sequences. Fifteen healthy 6-month-old weaned male donkeys with a body weight of 117.13 ± 10.

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  • Scientists studied how a special amino acid called leucine helps muscles grow by looking at horse muscle cells called satellite cells.
  • They found that adding leucine made a lot of important changes in the cells, with many genes and proteins becoming more or less active.
  • This research is exciting because it could help us understand how to make horses stronger and recover better from exercise injuries.
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  • Colon cancer is becoming more common, and researchers are looking into treatments that can help, like the ketogenic diet, which is low in carbs and high in fats.*
  • Donkey oil (DO) was tested with the ketogenic diet and showed promising results by slowing down tumor growth in mice with colon cancer.*
  • The study found that DOKD works by changing how the body's inflammation and blood vessel growth happen, which may help stop colon cancer from spreading.*
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Equid herpesvirus 8 (EHV-8), also known as asinine herpesvirus type 3 (AHV-3), can cause severe respiratory disease, abortion in mares, and neurological disorders. There is limited information on the prevalence of EHV-8 in donkeys in China. In this study, we investigated EHV-8 infection in donkeys using PCR, resulting in the identification of a field strain, termed EHV-8 SD2020113, which was isolated using RK-13 cells and characterized by high-throughput sequencing and transmission electron microscopy.

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Sperm cryopreservation is one of the sublime biotechnologies for assisted reproduction. In recent decades, there has been an increasing trend in the use of preserved semen. Post-thaw semen quality and values vary among animals of the same species.

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The makorin RING finger protein (MKRN) gene family encodes proteins (makorins) with a characteristic array of zinc-finger motifs present in a wide array from invertebrates to vertebrates. MKRNs (MKRN1, MKRN2, MKRN3, MKRN4) as RING finger E3 ligases that mediate substrate degradation are related with conserved RING finger domains that control multiple cellular components the ubiquitin-proteasome system (UPS), including p53, p21, FADD, PTEN, p65, Nptx1, GLK, and some viral or bacterial proteins. MKRNs also served as diverse roles in disease, like MKRN1 in transcription regulation, metabolic disorders, and tumors; MKRN2 in testis physiology, neurogenesis, apoptosis, and mutation of MKRN2 regulation signals transduction, inflammatory responses, melanoma, and neuroblastoma; MKRN3 in central precocious puberty (CPP) therapy; and MKRN4 firstly reported as a novel E3 ligase instead of a pseudogene to contribute to systemic lupus erythematosus (SLE).

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The goose is a popular poultry species, and in the past two decades the goose industry has become highly profitable across the globe. Ganders low reproductive performance remains a barrier to achieving high fertility and hatchability in subsequent flocks. To address the global demand for cheaper animal protein, various methodologies for improving avian (re)production should be explored.

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The current study investigated the effect of inhibin immunization on germ cell numbers (spermatogonia, spermatocytes, round, and elongated spermatids), seminiferous tubules (ST) diameter, Johnsen's score, epithelial height (μm), luminal tubular diameter (μm), and number of ST per field (ST/field) of Yangzhou goose ganders. Histological evaluation showed apoptosis and regression of testes after inhibin (INH) immunization, with a concomitantly marked reduction in the round and elongated spermatids in the experiment (INH) group compared to the control group. The diameter of seminiferous tubules (ST) and epithelial height (EH) were positively correlated at 181, 200, and 227 days of age.

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The past three decades revolutionized the goose industry in the world. China holds the world's largest goose breeds stock by 95% of the global total. To optimize the goose industry and cope with ever increasing poultry meat and egg demands, there is a dire need to focus on reproduction, as most geese breeds exhibit poor reproductive performance.

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The present study was designed to investigate the potential role of immunization against inhibin on testicular development, plasma testosterone concentration and expression of relevant genes in hypothalamus, pituitary, Leydig and Sertoli cells in Yangzhou ganders. For this purpose, Yangzhou ganders, n = 30 were divided into groups A and B. Group B ganders were actively immunized against inhibin α-subunit, while group A ganders were immunized with bovine serum albumin (BSA), which served as control.

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  • The study explores how lipopolysaccharide (LPS) affects the ovary of breeding Chinese geese, particularly its impact on steroid hormone production and the expression of Toll-like receptors, which are crucial for detecting infections.
  • Laying geese received LPS treatment for varying times, and their ovarian tissues were analyzed for changes in gene expression and structural integrity.
  • Findings suggest that LPS treatment alters follicle structure and negatively impacts hormone levels like progesterone and estrogen, indicating that pathogen infection leads to inflammation and lowers egg production by affecting ovarian function.
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  • Hydrogels are being researched for their ability to release pharmaceutical proteins and encapsulate living cells, making them valuable for drug delivery systems.
  • Their biodegradable nature allows them to break down into non-toxic substances, enhancing biocompatibility.
  • To create strong hydrogels, chemical cross-linking is commonly used, but the toxic cross-linkers must be removed; alternatively, physically cross-linked methods avoid this toxicity issue.
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Background: The present work objective was to prepare and to observe the effect of ethylene glycol dimethacrylate on swelling and on drug release behavior of pH-sensitive acrylic acid-polyvinyl alcohol hydrogel.

Methods: In the present work, pH sensitive acrylic acid-polyvinyl alcohol hydrogels have been prepared by free radical polymerization technique in the presence of benzoyl peroxide as an initiator. Different crosslinker contents were used to observe its effect on swelling and on drug release.

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