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1.
Crohns Colitis 360 ; 5(4): otad055, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37867930

ABSTRACT

Abdominal pain is one of the most common and impactful symptoms associated with inflammatory bowel disease (IBD), including both Crohn's disease and ulcerative colitis. A great deal of research has been undertaken over the past several years to improve our understanding and to optimize management of this issue. Unfortunately, there is still significant confusion about the underlying pathophysiology of abdominal pain in these conditions and the evidence underlying treatment options in this context. There is also a relative paucity of comprehensive reviews on this topic, including those that simultaneously evaluate pharmacological and nonpharmacological therapeutic options. In this review, our multidisciplinary team examines evidence for various currently available medical, surgical, and other analgesic options to manage abdominal pain in IBD.

2.
Article in English | MEDLINE | ID: mdl-32759082

ABSTRACT

A ternary solid solution of lead-free Na1/2Bi1/2TiO3-BaTiO3 and BiGaO3 (NBT-BT-BG) was prepared using conventional, solid-state synthesis. Compositions were prepared near the morphotropic phase boundary (MPB) of ( 1- x )NBT- x BT, located near x = 0.04 -0.09 , and then systematically substituted with 2-5 mol% BG to investigate the effect of the compositional change on the accompanying properties. Dielectric, ferroelectric (FE), and piezoelectric properties were analyzed and compared for all prepared compositions. The FE to ergodic (ER) relaxor transition temperature ( [Formula: see text]) and the reversible electric field-induced relaxor to FE transition were investigated to determine their effects on the strain response. It was found that the MPB composition of 0.93NBT-0.07BT required the least amount of the tertiary phase, 3 mol% BG, to reach a disordered, ER state while also requiring the largest electric fields to induce an FE phase compared with similarly substituted NBT- x BT samples. This led to a maximum unipolar strain of 0.53% (d33* = 866 pm/V) for the 0.93NBT-0.07BT-0.04BG composition. The largest strains for each system occurred in compositions that were in the ER region at room temperature. These results demonstrate that the addition of BG most effectively destabilizes the long-range dipole order near the MPB composition of NBT-BT, which results in an enhanced electric field-induced strain.

3.
Am J Emerg Med ; 38(7): 1466-1469, 2020 07.
Article in English | MEDLINE | ID: mdl-32171581

ABSTRACT

PURPOSE: Identification of problematic alcohol use and substance use in the population has been a clinical challenge, especially during the heightened years of the opioid epidemic. Bringing Screening, Brief Intervention, and Referral to Treatment (SBIRT) to scale in medical settings, such as hospital emergency departments (EDs) could facilitate broad identification of substance use disorders, timely delivery of brief interventions, and successful linkages to treatment. PROCEDURES: This large-scale data analysis pulled electronic health record (EHR) data from 23 hospitals in the state of Maryland for over 1 million patient visits between July 2014 and November 2018. FINDINGS: Of the 1,097,142 ED patients screened, 17.2% screened positive for problematic alcohol or any drug use in the previous 12 months. During this same period, 79,899 brief interventions were delivered, 15,961 referrals to outpatient treatment were made and 38.3% of those were successfully linked to treatment. Of the 950 patients exhibiting withdrawal symptoms, over two-thirds patients (70.1%; n = 666) were administered buprenorphine, 94.6% (n = 630) accepted a referral to buprenorphine treatment in the community, and 64.6% (n = 430) attended their first outpatient buprenorphine treatment visit. A total of 2382 patients presented to the ED with a suspected opioid overdose, over half were referred to the intervention program (53.8%) and 63.2% were successfully engaged by the PRCs in the ED. CONCLUSIONS: This analysis supports the scalability of SBIRT in hospital EDs and presents an implementation model that can be replicated in EDs nationwide.


Subject(s)
Emergency Service, Hospital , Mass Screening/organization & administration , Mass Screening/statistics & numerical data , Opiate Substitution Treatment/statistics & numerical data , Referral and Consultation/statistics & numerical data , Substance-Related Disorders/diagnosis , Analgesics, Opioid/adverse effects , Buprenorphine/administration & dosage , Drug Overdose/epidemiology , Humans , Maryland/epidemiology , Narcotic Antagonists/administration & dosage , Substance Withdrawal Syndrome/therapy , Substance-Related Disorders/epidemiology , Substance-Related Disorders/rehabilitation
4.
Semin Reprod Med ; 36(2): 159-163, 2018 Mar.
Article in English | MEDLINE | ID: mdl-30566982

ABSTRACT

Chronic pelvic pain (CPP) is a recurring and/or constant pain of at least six months duration that has resulted in either functional or psychological disability that can require interventional treatments. Chronic pelvic pain can be visceral, somatic, neuropathic, or a combination. Patients with CPP often suffer from concurrent bowel or bladder dysfunction, sexual dysfunction, depression, and anxiety. The complexity of chronic pelvic pain can be challenging to treat, which can lead to frustration for both patients and their physicians. Treatment should involve a comprehensive and multi-modal approach involving psychosocial support, counseling, physical therapy, medication management, and interventional procedures. This manuscript will focus both on the etiologies and the interventional treatment options for chronic pelvic pain.


Subject(s)
Pain Management/methods , Pelvic Pain/therapy , Chronic Pain/complications , Chronic Pain/diagnosis , Chronic Pain/therapy , Female , Humans , Neuralgia/complications , Neuralgia/therapy , Pelvic Pain/complications , Pelvic Pain/diagnosis , Somatoform Disorders/complications , Somatoform Disorders/therapy , Visceral Pain/complications , Visceral Pain/therapy
5.
Case Rep Anesthesiol ; 2016: 4659891, 2016.
Article in English | MEDLINE | ID: mdl-27721997

ABSTRACT

Goltz syndrome, also known as focal dermal hypoplasia, is a rare X-linked dominant multisystem syndrome presenting with cutaneous, skeletal, dental ocular, central nervous system and soft tissue abnormalities. This case report discusses an adult male patient with Goltz syndrome that was noted to have large, papillomatous, hypopharyngeal lesions upon induction of general anesthesia. We highlight challenges with airway management intraoperatively and postoperatively in patients with Goltz syndrome. Our aim is to increase awareness of the potential airway complications associated with this genetic disorder and to provide suggestions for optimal perioperative management for patients afflicted with Goltz syndrome.

6.
Bioorg Med Chem Lett ; 20(22): 6620-3, 2010 Nov 15.
Article in English | MEDLINE | ID: mdl-20888222

ABSTRACT

A selected series of racemic α-methylene-γ-butyrolactones (AMGBL) were synthesized via allylboration and screened against three human pancreatic cancer cell lines (Panc-1, MIA PaCa-2, and BxPC-3). This systematic study established a discernible relationship between the substitution pattern of AMGBL and their anti-proliferative activity. ß,γ-diaryl-AMGBLs, particularly those with a trans-relationship exhibited higher potency than parthenolide and LC-1 against all three cell lines.


Subject(s)
4-Butyrolactone/pharmacology , Cell Division/drug effects , Pancreatic Neoplasms/pathology , 4-Butyrolactone/chemistry , Cell Line, Tumor , Humans
7.
Mol Reprod Dev ; 76(1): 38-47, 2009 Jan.
Article in English | MEDLINE | ID: mdl-18449896

ABSTRACT

In vitro production (IVP) has been shown to affect embryonic gene expression and often result in large offspring syndrome (LOS) in cattle and sheep. To dissect the effects of in vitro maturation, fertilization and culture on bovine embryos, we compared the expression profiles of single blastocysts generated by: (1) in vitro maturation, fertilization and culture (IVF); (2) in vivo maturation, fertilization and in vitro culture (IVD); and (3) in vivo maturation, fertilization and development (AI). To conduct expression profiling, total RNA was isolated from individual embryos, linearly amplified and hybridized to a custom bovine cDNA microarray containing approximately 6,300 unique genes. There were 306, 367, and 200 genes differentially expressed between the AI and IVD, IVF and IVD, and AI and IVF comparisons, respectively. Interestingly, 44 differentially expressed genes were identified between the AI embryos and both the IVF and IVD embryos, making these potential candidates for LOS. There were 60 genes differentially expressed between the IVF embryos and the AI and IVD embryos. The Gene Ontology category "RNA processing" was over-represented among the genes that were down-regulated in the IVF embryos, indicating an effect of in vitro oocyte maturation/fertilization on the ability to transcribe maternal RNA stores. A culture effect on the expression of genes involved in translation was also observed by the comparison of AI with IVD embryos.


Subject(s)
Embryo Culture Techniques , Embryo, Mammalian/embryology , Embryo, Mammalian/metabolism , Fertilization in Vitro , Gene Expression Profiling , Gene Expression Regulation, Developmental/genetics , Animals , Cattle , Epigenesis, Genetic/genetics , X Chromosome/genetics
9.
Nat Genet ; 39(3): 295-302, 2007 Mar.
Article in English | MEDLINE | ID: mdl-17325680

ABSTRACT

Therapeutic cloning, whereby somatic cell nuclear transfer (SCNT) is used to generate patient-specific embryonic stem cells (ESCs) from blastocysts cloned by nuclear transfer (ntESCs), holds great promise for the treatment of many human diseases. ntESCs have been derived in mice and cattle, but thus far there are no credible reports of human ntESCs. Here we review the recent literature on nuclear reprogramming by SCNT, including studies of gene expression, DNA methylation, chromatin remodeling, genomic imprinting and X chromosome inactivation. Reprogramming of genes expressed in the inner cell mass, from which ntESCs are derived, seems to be highly efficient. Defects in the extraembryonic lineage are probably the major cause of the low success rate of reproductive cloning but are not expected to affect the derivation of ntESCs. We remain optimistic that human therapeutic cloning is achievable and that the derivation of patient-specific ntESC lines will have great potential for regenerative medicine.


Subject(s)
Cellular Reprogramming , Cloning, Organism , Embryo, Mammalian/metabolism , Epigenesis, Genetic , Nuclear Transfer Techniques , Animals , Cattle , Embryonic Stem Cells/metabolism , Female , Humans , Mice , Models, Biological
10.
Nat Genet ; 38(11): 1323-8, 2006 Nov.
Article in English | MEDLINE | ID: mdl-17013394

ABSTRACT

Since the creation of Dolly via somatic cell nuclear transfer (SCNT), more than a dozen species of mammals have been cloned using this technology. One hypothesis for the limited success of cloning via SCNT (1%-5%) is that the clones are likely to be derived from adult stem cells. Support for this hypothesis comes from the findings that the reproductive cloning efficiency for embryonic stem cells is five to ten times higher than that for somatic cells as donors and that cloned pups cannot be produced directly from cloned embryos derived from differentiated B and T cells or neuronal cells. The question remains as to whether SCNT-derived animal clones can be derived from truly differentiated somatic cells. We tested this hypothesis with mouse hematopoietic cells at different differentiation stages: hematopoietic stem cells, progenitor cells and granulocytes. We found that cloning efficiency increases over the differentiation hierarchy, and terminally differentiated postmitotic granulocytes yield cloned pups with the greatest cloning efficiency.


Subject(s)
Adult Stem Cells/physiology , Cell Differentiation/physiology , Cloning, Organism/methods , Hematopoietic Stem Cells/cytology , Nuclear Transfer Techniques , Adult Stem Cells/cytology , Animals , Embryo, Mammalian/cytology , Female , Gene Expression Profiling , Granulocytes/cytology , Granulocytes/physiology , Hematopoietic Stem Cells/metabolism , Male , Mice , Mice, Inbred C57BL , Mice, Inbred DBA , Models, Biological , Pregnancy , Stem Cells/cytology , Stem Cells/physiology
11.
Proc Natl Acad Sci U S A ; 102(49): 17582-7, 2005 Dec 06.
Article in English | MEDLINE | ID: mdl-16314565

ABSTRACT

Nuclear transfer (NT) has potential applications in agriculture and biomedicine, but the technology is hindered by low efficiency. Global gene expression analysis of clones is important for the comprehensive study of nuclear reprogramming. Here, we compared global gene expression profiles of individual bovine NT blastocysts with their somatic donor cells and fertilized control embryos using cDNA microarray technology. The NT embryos' gene expression profiles were drastically different from those of their donor cells and closely resembled those of the naturally fertilized embryos. Our findings demonstrate that the NT embryos have undergone significant nuclear reprogramming by the blastocyst stage; however, problems may occur during redifferentiation for tissue genesis and organogenesis, and small reprogramming errors may be magnified downstream in development.


Subject(s)
Blastocyst/cytology , Blastocyst/metabolism , Cell Nucleus/genetics , Cell Nucleus/physiology , Cloning, Organism , Gene Expression Profiling , Animals , Cattle , Fertilization in Vitro , Insemination, Artificial , Oligonucleotide Array Sequence Analysis , RNA, Messenger/genetics , RNA, Messenger/metabolism , Up-Regulation/genetics
12.
Proc Natl Acad Sci U S A ; 102(18): 6261-6, 2005 May 03.
Article in English | MEDLINE | ID: mdl-15829585

ABSTRACT

The technology is now available for commercial cloning of farm animals for food production, but is the food safe for consumers? Here, we provide data on >100 parameters that compare the composition of meat and milk from beef and dairy cattle derived from cloning to those of genetic- and breed-matched control animals from conventional reproduction. The cloned animals and the comparators were managed under the same conditions and received the same diet. The composition of the meat and milk from the clones were largely not statistically different from those of matched comparators, and all parameters examined were within the normal industry standards or previously reported values. The data generated from our match-controlled experiments provide science-based information desired by regulatory agencies to address public concerns about the safety of meat and milk from somatic animal clones.


Subject(s)
Cattle , Cloning, Organism , Meat/analysis , Milk/chemistry , Animals , Body Composition , Consumer Product Safety , Food Inspection/methods , Food Inspection/standards , Linear Models , Meat/standards , Milk/standards , Viscera/pathology
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