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Pelzman D, Honig S, Sandlow J. Comparative review of vasectomy guidelines and novel vasal occlusion techniques. Andrology 2024; 12:1541-1546. [PMID: 38774918 DOI: 10.1111/andr.13665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/03/2024] [Accepted: 05/07/2024] [Indexed: 10/10/2024]
Abstract
Vasectomy is the most commonly performed urologic procedure in the United States and is a highly effective form of male contraception. The introduction of guidelines by urological societies has standardized vasectomy care. Providers should be awadre of the rationale behind these guidelines, as well as key differences among them. While few major changes to vasectomy technique have been adopted over the past 40 years, new, reversible vasal occlusive technologies may affect delivery of male contraceptive care in the future. Here, we perform a comparative review of vasectomy guidelines from six urological societies worldwide. In addition, we report on the status of several experimental vasal occlusion methods that may be available in the next decade.
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Affiliation(s)
- Daniel Pelzman
- Department of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Stanton Honig
- Department of Urology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jay Sandlow
- Department of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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2
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Wang C, Meriggiola MC, Amory JK, Barratt CLR, Behre HM, Bremner WJ, Ferlin A, Honig S, Kopa Z, Lo K, Nieschlag E, Page ST, Sandlow J, Sitruk-Ware R, Swerdloff RS, Wu FCW, Goulis DG. Practice and development of male contraception: European Academy of Andrology and American Society of Andrology guidelines. Andrology 2024; 12:1470-1500. [PMID: 37727884 DOI: 10.1111/andr.13525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUNDS Despite a wide spectrum of contraceptive methods for women, the unintended pregnancy rate remains high (45% in the US), with 50% resulting in abortion. Currently, 20% of global contraceptive use is male-directed, with a wide variation among countries due to limited availability and lack of efficacy. Worldwide studies indicate that >50% of men would opt to use a reversible method, and 90% of women would rely on their partner to use a contraceptive. Additional reasons for novel male contraceptive methods to be available include the increased life expectancy, sharing the reproductive risks among partners, social issues, the lack of pharma industry involvement and the lack of opinion makers advocating for male contraception. AIM The present guidelines aim to review the status regarding male contraception, the current state of the art to support the clinical practice, recommend minimal requirements for new male contraceptive development and provide and grade updated, evidence-based recommendations from the European Society of Andrology (EAA) and the American Society of Andrology (ASA). METHODS An expert panel of academicians appointed by the EAA and the ASA generated a consensus guideline according to the GRADE (Grading of Recommendations, Assessment, Development and Evaluation) system. RESULTS Sixty evidence-based and graded recommendations were produced on couple-centered communication, behaviors, barrier methods, semen analysis and contraceptive efficacy, physical agents, surgical methods, actions before initiating male contraception, hormonal methods, non-hormonal methods, vaccines, and social and ethical considerations. CONCLUSION As gender roles transform and gender equity is established in relationships, the male contribution to family planning must be facilitated. Efficient and safe male-directed methods must be evaluated and introduced into clinical practice, preferably reversible, either hormonal or non-hormonal. From a future perspective, identifying new hormonal combinations, suitable testicular targets, and emerging vas occlusion methods will produce novel molecules and products for male contraception.
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Affiliation(s)
- Christina Wang
- Division of Endocrinology, Department of Medicine and Clinical and Translational Science Institute, The Lundquist Insitute and Harbor-UCLA Medical Center, Torrance, California, USA
| | - Maria Cristina Meriggiola
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - John K Amory
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Christopher L R Barratt
- Division of Systems and Cellular Medicine, Medical School, Ninewells Hospital, University of Dundee, Dundee, Scotland
| | - Hermann M Behre
- Center for Reproductive Medicine and Andrology, University Medicine Halle, Halle, Germany
| | - William J Bremner
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Alberto Ferlin
- Unit of Andrology and Reproductive Medicine, Department of Medicine, University of Padova, Padova, Italy
| | - Stanton Honig
- Division of Reproductive and Sexual Medicine, Department of Urology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Zsolt Kopa
- Department of Urology, Andrology Centre, Semmelweis University, Budapest, Hungary
| | - Kirk Lo
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Canada
| | - Eberhard Nieschlag
- Center of Reproductive Medicine and Andrology, University Hospital, Münster, Germany
| | - Stephanie T Page
- Division of Metabolism, Endocrinology and Nutrition, UW Medicine Diabetes Institute, University of Washington School of Medicine, Seattle, Washington, USA
| | - Jay Sandlow
- Department of Urology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Regine Sitruk-Ware
- Center for Biomedical Research, Population Council, New York, New York, USA
| | - Ronald S Swerdloff
- Division of Endocrinology, Department of Medicine, The Lundquist Institute and Harbor-UCLA Medical Center, Torrance, California, USA
| | - Frederick C W Wu
- Division of Endocrinology, Diabetes and Gastroenterology, Faculty of Biology, Medicine and Health, School of Medical Sciences, University of Manchester, Manchester, UK
| | - Dimitrios G Goulis
- First Department of Obstetrics and Gynecology, Unit of Reproductive Endocrinology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Huang H, Zheng Y, Chang M, Song J, Xia L, Wu C, Jia W, Ren H, Feng W, Chen Y. Ultrasound-Based Micro-/Nanosystems for Biomedical Applications. Chem Rev 2024; 124:8307-8472. [PMID: 38924776 DOI: 10.1021/acs.chemrev.4c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Due to the intrinsic non-invasive nature, cost-effectiveness, high safety, and real-time capabilities, besides diagnostic imaging, ultrasound as a typical mechanical wave has been extensively developed as a physical tool for versatile biomedical applications. Especially, the prosperity of nanotechnology and nanomedicine invigorates the landscape of ultrasound-based medicine. The unprecedented surge in research enthusiasm and dedicated efforts have led to a mass of multifunctional micro-/nanosystems being applied in ultrasound biomedicine, facilitating precise diagnosis, effective treatment, and personalized theranostics. The effective deployment of versatile ultrasound-based micro-/nanosystems in biomedical applications is rooted in a profound understanding of the relationship among composition, structure, property, bioactivity, application, and performance. In this comprehensive review, we elaborate on the general principles regarding the design, synthesis, functionalization, and optimization of ultrasound-based micro-/nanosystems for abundant biomedical applications. In particular, recent advancements in ultrasound-based micro-/nanosystems for diagnostic imaging are meticulously summarized. Furthermore, we systematically elucidate state-of-the-art studies concerning recent progress in ultrasound-based micro-/nanosystems for therapeutic applications targeting various pathological abnormalities including cancer, bacterial infection, brain diseases, cardiovascular diseases, and metabolic diseases. Finally, we conclude and provide an outlook on this research field with an in-depth discussion of the challenges faced and future developments for further extensive clinical translation and application.
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Affiliation(s)
- Hui Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yi Zheng
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P. R. China
| | - Meiqi Chang
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P. R. China
| | - Jun Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Lili Xia
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Chenyao Wu
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Wencong Jia
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Hongze Ren
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Wei Feng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yu Chen
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
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4
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Liu Z, Wang Z, Zhang Z, Zhang Z, Qi X, Zhu H, Zhang K, Qu T, Zhao Y, Kang Z, Zeng F, Guo P, Tong Z, Wang L, Wang H, Xu W. Engineering Nanosensitizer to Remodel the TME for Hypoimmunogenic "Cold"-"Hot" Tumor Transformations. NANO LETTERS 2024; 24:1510-1521. [PMID: 38285667 DOI: 10.1021/acs.nanolett.3c03816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
α-PD-L1 therapy has shown encouraging results at harnessing the immune system to combat cancer. However, the treatment effect is relatively low due to the dense extracellular matrix (ECM) and tumor immunosuppressive microenvironment (TIME). Therefore, an ultrasound (US)-responsive nanosensitizer (URNS) is engineered to deliver losartan (LST) and polyethylenimine (PEI) to remolde the TME, driving "cold"-"hot" tumor transformation and enhancing the sensitivity of α-PD-L1 therapy. In the tumor site, noninvasive US can make MTNP generate ROS, which cleave ROS-sensitive bonds to dissociate MTNPtK@LST-PEI, shedding PEI and releasing LST from mesoporous spheres. The results demonstrated that URNS combined with α-PD-L1 therapy effectively inhibited tumor growth with an inhibition rate as high as 90%, which was 1.7-fold higher than that of the α-PD-L1 treatment in vivo. In summary, the URNS improves the sensitivity of α-PD-L1 therapy by remodeling the TME, which provides promising insights for optimizing cancer immunotherapy.
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Affiliation(s)
- Zhongqing Liu
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
- Department of Urology, The First Affiliated Hospital of Shandong First Medical University & Shandong Province Qianfoshan Hospital, Jinan 250014, People's Republic of China
| | - Ziqi Wang
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Zhishuai Zhang
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Zhenwei Zhang
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Xin Qi
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Hanwen Zhu
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Kuo Zhang
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Tianrui Qu
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Yubo Zhao
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Zhijian Kang
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Fanshu Zeng
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Pengyu Guo
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Zhichao Tong
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Lu Wang
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
| | - Hao Wang
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Wanhai Xu
- Department of Urology (Heilongjiang Key Laboratory of Scientific Research in Urology), Harbin Medical University Cancer Hospital, Harbin 150001, People's Republic of China
- NHC Key Laboratory of Molecular Probes and Targeted Diagnosis and Therapy, Harbin Medical University, Harbin 150001, People's Republic of China
- Harbin Medical University, Harbin 150001, People's Republic of China
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5
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Anthis AHC, Kilchenmann S, Murdeu M, LeValley PJ, Wolf M, Meyer C, Cipolato O, Tibbitt MW, Rosendorf J, Liska V, Rduch T, Herrmann IK. Reversible Mechanical Contraception and Endometriosis Treatment Using Stimuli-Responsive Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2310301. [PMID: 38298130 DOI: 10.1002/adma.202310301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/22/2023] [Indexed: 02/02/2024]
Abstract
Female sterilization via fallopian tube ligation is a common procedure; However, after the operation, over 10% of women seek re-fertilization, which is frequently unsuccessful. In addition, there is evidence that fallopian tubes contribute to the spread of endometriotic tissue as they serve as channels for proinflammatory media entering the abdominal cavity via retrograde menstruation. Here, stimuli-degradable hydrogel implants are presented for the functional, biocompatible, and reversible occlusion of fallopian tubes. The hydrogel implants, designed with customized swelling properties, mechanically occlude fallopian tubes in a high-performance manner with burst pressures reaching 255-558 mmHg, exceeding normal abdominal pressures (95 mmHg). Their damage-free removal can be achieved within 30 min using near-visible UV light or a glutathione solution, employing a method akin to standard fallopian tube perfusion diagnostics. Ultrasound-guided implant placement is demonstrated using a clinical hysteroscope in a human-scale uterus model and biocompatibility in a porcine in vivo model. Importantly, the prevention of live sperm as well as endometrial cell passage through blocked fallopian tubes is demonstrated. Overall, a multifunctional system is presented that constitutes a possible means of on-demand, reversible contraception along with the first-ever mechanical approach to abdominal endometriosis prevention and treatment.
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Affiliation(s)
- Alexandre H C Anthis
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
- Ingenuity Laboratory, University Hospital Balgrist, Forchstrasse 340, Zurich, 8008, Switzerland
| | - Samuel Kilchenmann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
| | - Manon Murdeu
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Paige J LeValley
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Morris Wolf
- Macromolecular Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
| | - Charlotte Meyer
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Oscar Cipolato
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
| | - Mark W Tibbitt
- Macromolecular Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
| | - Jachym Rosendorf
- Department of Surgery, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 923/80, Pilsen, 32300, Czech Republic
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
| | - Vaclav Liska
- Department of Surgery, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 923/80, Pilsen, 32300, Czech Republic
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
| | - Thomas Rduch
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
- Department of Gynecology and Obstetrics (Frauenklinik), Cantonal Hospital St. Gallen (KSSG), Rorschacherstrasse 95, St. Gallen, 9007, Switzerland
| | - Inge K Herrmann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
- Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, St. Gallen, 9014, Switzerland
- Ingenuity Laboratory, University Hospital Balgrist, Forchstrasse 340, Zurich, 8008, Switzerland
- Faculty of Medicine, University of Zurich, Rämistrasse 71, Zurich, 8006, Switzerland
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Su Z, Diao T, McGuire H, Yao C, Yang L, Bao G, Xu X, He B, Zheng Y. Nanomaterials Solutions for Contraception: Concerns, Advances, and Prospects. ACS NANO 2023; 17:20753-20775. [PMID: 37856253 DOI: 10.1021/acsnano.3c04366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Preventing unintentional pregnancy is one of the goals of a global public health policy to minimize effects on individuals, families, and society. Various contraceptive formulations with high effectiveness and acceptance, including intrauterine devices, hormonal patches for females, and condoms and vasectomy for males, have been developed and adopted over the last decades. However, distinct breakthroughs of contraceptive techniques have not yet been achieved, while the associated long-term adverse effects are insurmountable, such as endocrine system disorder along with hormone administration, invasive ligation, and slowly restored fertility after removal of intrauterine devices. Spurred by developments of nanomaterials and bionanotechnologies, advanced contraceptives could be fulfilled via nanomaterial solutions with much safer and more controllable and effective approaches to meet various and specific needs for women and men at different reproductive stages. Nanomedicine techniques have been extended to develop contraceptive methods, such as the targeted drug delivery and controlled release of hormone using nanocarriers for females and physical stimulation assisted vasectomy using functional nanomaterials via photothermal treatment or magnetic hyperthermia for males. Nanomaterial solutions for advanced contraceptives offer significantly improved biosafety, noninvasive administration, and controllable reversibility. This review summarizes the nanomaterial solutions to female and male contraceptives including the working mechanisms, clinical concerns, and their merits and demerits. This work also reviewed the nanomaterials that have been adopted in contraceptive applications. In addition, we further discuss safety considerations and future perspectives of nanomaterials in nanostrategy development for next-generation contraceptives. We expect that nanomaterials would potentially replace conventional materials for contraception in the near future.
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Affiliation(s)
- Zhenning Su
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Tian Diao
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Helen McGuire
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Cancan Yao
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Lijun Yang
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Guo Bao
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
| | - Xiaoxue Xu
- School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia
- School of Science, Western Sydney University, Kumamoto NSW 2751, Australia
| | - Bin He
- NHC Key Laboratory of Reproductive Health Engineering Technology Research, Department of Reproduction Physiology, National Research Institute for Family Planning, Beijing 100081, China
| | - Yufeng Zheng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- International Research Organization for Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto 860-8555, Japan
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7
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Amory JK. Male Contraception. Semin Reprod Med 2023; 41:279-286. [PMID: 38113922 DOI: 10.1055/s-0043-1777757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Approximately 40 to 50% of pregnancies are unintended. Contraceptive use significantly reduces the risk of unintended pregnancy. Approximately 70% of couples' contraceptive use is female and 30% is male, attributable to the reliance on condoms and vasectomies. Unfortunately, many women cannot use currently available contraceptives due to medical contraindications or side effects. At the same time, men want additional safe and effective contraceptive methods. Because of this, work to develop novel, safe, and effective male contraceptives is underway. This review will briefly discuss the pros and cons of condoms and vasectomies, and then describe research into the development of novel methods of male contraception, by the mechanism of action of the contraceptive. First, we will discuss male contraceptives that block sperm transmission. Next, we will discuss male contraceptives that impair sperm production. Lastly, we will discuss male contraceptives that impair sperm function.
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Affiliation(s)
- John K Amory
- Department of Medicine, The Center for Research in Reproduction and Contraception, University of Washington, Seattle, Washington
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8
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Wang K, Mao W, Song X, Chen M, Feng W, Peng B, Chen Y. Reactive X (where X = O, N, S, C, Cl, Br, and I) species nanomedicine. Chem Soc Rev 2023; 52:6957-7035. [PMID: 37743750 DOI: 10.1039/d2cs00435f] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Reactive oxygen, nitrogen, sulfur, carbonyl, chlorine, bromine, and iodine species (RXS, where X = O, N, S, C, Cl, Br, and I) have important roles in various normal physiological processes and act as essential regulators of cell metabolism; their inherent biological activities govern cell signaling, immune balance, and tissue homeostasis. However, an imbalance between RXS production and consumption will induce the occurrence and development of various diseases. Due to the considerable progress of nanomedicine, a variety of nanosystems that can regulate RXS has been rationally designed and engineered for restoring RXS balance to halt the pathological processes of different diseases. The invention of radical-regulating nanomaterials creates the possibility of intriguing projects for disease treatment and promotes advances in nanomedicine. In this comprehensive review, we summarize, discuss, and highlight very-recent advances in RXS-based nanomedicine for versatile disease treatments. This review particularly focuses on the types and pathological effects of these reactive species and explores the biological effects of RXS-based nanomaterials, accompanied by a discussion and the outlook of the challenges faced and future clinical translations of RXS nanomedicines.
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Affiliation(s)
- Keyi Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, P. R. China.
| | - Weipu Mao
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, P. R. China
| | - Xinran Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, P. R. China
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Bo Peng
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, P. R. China.
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
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Kang M, Lee DM, Hyun I, Rubab N, Kim SH, Kim SW. Advances in Bioresorbable Triboelectric Nanogenerators. Chem Rev 2023; 123:11559-11618. [PMID: 37756249 PMCID: PMC10571046 DOI: 10.1021/acs.chemrev.3c00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Indexed: 09/29/2023]
Abstract
With the growing demand for next-generation health care, the integration of electronic components into implantable medical devices (IMDs) has become a vital factor in achieving sophisticated healthcare functionalities such as electrophysiological monitoring and electroceuticals worldwide. However, these devices confront technological challenges concerning a noninvasive power supply and biosafe device removal. Addressing these challenges is crucial to ensure continuous operation and patient comfort and minimize the physical and economic burden on the patient and the healthcare system. This Review highlights the promising capabilities of bioresorbable triboelectric nanogenerators (B-TENGs) as temporary self-clearing power sources and self-powered IMDs. First, we present an overview of and progress in bioresorbable triboelectric energy harvesting devices, focusing on their working principles, materials development, and biodegradation mechanisms. Next, we examine the current state of on-demand transient implants and their biomedical applications. Finally, we address the current challenges and future perspectives of B-TENGs, aimed at expanding their technological scope and developing innovative solutions. This Review discusses advancements in materials science, chemistry, and microfabrication that can advance the scope of energy solutions available for IMDs. These innovations can potentially change the current health paradigm, contribute to enhanced longevity, and reshape the healthcare landscape soon.
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Affiliation(s)
- Minki Kang
- School
of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Dong-Min Lee
- School
of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic
of Korea
| | - Inah Hyun
- Department
of Materials Science and Engineering, Center for Human-oriented Triboelectric
Energy Harvesting, Yonsei University, Seoul 03722, Republic of Korea
| | - Najaf Rubab
- Department
of Materials Science and Engineering, Gachon
University, Seongnam 13120, Republic
of Korea
| | - So-Hee Kim
- Department
of Materials Science and Engineering, Center for Human-oriented Triboelectric
Energy Harvesting, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang-Woo Kim
- Department
of Materials Science and Engineering, Center for Human-oriented Triboelectric
Energy Harvesting, Yonsei University, Seoul 03722, Republic of Korea
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